category include barramundi, cobia, cod, and 
paddlefish. 
In the 2013 Census of Aquaculture, the summary by 
value of aquaculture produets sold is published for 
all food fish, ineluding catfish and trout. In addition, 
eggs from food fish are ineluded in the food fish 
totals. 
Foodsize. Ineludes grown aquaculture produets 
ready for market. 
Fry. Very young post-larval fish. 
Government agencies. Ineluded in this category are 
sales made to Federal, State, or local government 
hateheries or other groups involved in purchasing 
fish to stock Federal, publiely owned or regulated 
waters and recreational areas. 
Hybrid catfish. A cross between a female channel 
catfish and a male blue catfish. 
Hybrid striped bass. A cross between a male white 
bass and a female striped bass. 
Larvae. Newly hatched, earliest stage of animals 
that undergo metamorphosis, differing markedly in 
form and appearance from the adult. 
Live haulers, brokers, etc. Individuals or 
companies that purchase aquaculture products from a 
producer for immediate resale. They may or may not 
take possession of the product. Live haulers transport 
aquaculture products in oxygenated tank trucks to 
other outlets, including processing plants, pay lakes, 
recreational lakes, and retail outlets. 
Miscellaneous aquaculture. In 2013, this category 
represents the production of aquaculture products 
other than food fish, sport fish, baitfish, ornamental 
fish, crustaceans, and mollusks. Examples include 
algae (microalgae and sea vegetables such as 
seaweed and ogo), alligators, caviar, eels, frogs, sea 
urchins, snails, tadpoles, turtles, and live rock. 
Examples of Other miscellaneous aquaculture 
include gambusia and bioassay fish (fish used for 
toxic testing). 
Mollusks. These are marine invertebrates (no 
backbone). In general, mollusks have three body 
2012 Census of Agriculture 
USDA, National Agricultural Statistics Service 
regions: a head, a visceral mass, and a “foot.” 
Mollusks usually have a shell, although some do not. 
Examples include abalone, clams, mussels, and 
oysters. Examples of mollusks in the Other mollusk 
category include scallops and scallop seed. 
Mollusks off bottom. The use of water column 
suspension techniques, including enclosures and 
lines for the production of normally bottom-dwelling 
mollusks. These techniques are designed to minimize 
bottom predators and maximize the use of a three- 
dimensional space for cultivation. 
Mollusks on bottom. The practice of raising 
mollusks on the bottom of tidal waters that have had 
oyster shell, clam shell, or other material added to 
improve the habitat for growth and survival. 
Non-recirculating systems. Process of rearing 
aquatic organisms and discharging the water after its 
intended use. 
Off farm water. Water that comes from a Eederal 
supplier; irrigation district; mutual, private, or 
cooperative ditches; commercial company; or 
municipal or community water system. 
On farm surface water. Surface supply not 
controlled by a water supply organization. Examples 
include, streams, drainage ditches, lakes, ponds, 
springs, and reservoirs. 
Operator. A person who operates the farm making 
day-to-day decisions for the farm. 
Ornamental fish. This category includes fish raised 
for water gardens, aquariums, etc. Examples include 
koi and guppies. An example of fish in the Other 
ornamental fish category include seahorses. 
Other aquaculture products. This category 
includes all aquaculture products that were not pre- 
printed in the table. 
Oysters, other. This category includes Kumomoto 
and other oysters besides Eastern and Pacific. 
Pens. Large enclosures usually placed in rivers or 
ocean bays. Pens are usually floated in the water, but 
may also be secured to the bottom. Pens are 
APPENDIX B B-3 
